Lolololol
So Gramma full claimed to be Ginny and with an insane amount of panic, he outed Nick. You got them rhyme?
Welp, it's very unwise for a town to out another town for the sake of stepping away from the trial esp with HP's case. Nonetheless, Immana give Gramma a benefit of the doubt provided of course that it wasn't convenient to claim that he investigated Destroya, which brw might have been a victim of Cleaner=Janitor. In that case, he might have been using whatever info they might hace gotten outta him.
Now, should we move on to that notion, may I ask people who truly know of the flavor better than I do what they think of a character who uses a horcrux?
Lastly, aside from being a relic of the past, what danger does possessing Rowena Ravenclaw's Diadem have to bestow upon its target?